According to a report from TMZ on Jan 1, 2013, the sales of reality star Kim Kardashian's sex tape have spiked up significantly after the news of her pregnancy.
Vivid Entertaintment, the owner of Kim Kardashian's sex-tape 'Kim K Superstar' revealed that the video-on-demand purchases of the tape have spiked 80% since Sunday night, this is the fastest hike since Kim's wedding to Kris Humphries.
Reportedly the overall sales of Kim's sex tape, online or DVD have also increased since the news of the couple dating came up last Spring.
Kardashian filmed the tape with her then boyfriend Ray J in 2003. Kanye West had revealed the news of Kim's pregnancy at a concert recently.
In Feb 2007, the sex-tape that Kardashian made with her then boyfriend singer Ray J in 2003 was leaked. Vivid Entertainment bought the rights for $1 million and released the film as 'Kim Kardashian: Superstar'.
Kim sued Vivid Entertainment for ownership of the tape and in April 2007, Kardashian dropped the suit and settled for $5 million.
According to recent reports, Kim's boyfriend Kanye West also has a couple of his own sex tapes, one of them is said to feature a Kim Kardashian look alike.